The 100G CFP OTU board is a 100G service access module Communications and designed for optical fiber links. It can adjust the wavelength of CFP coherent optical modules and convert it into DWDM standard wavelength optical signals, and cooperates with DWDM multiplexing/decomposition The multiplexer realizes wavelength division multiplexing transmission and provides a high-quality solution for transmission lines where fiber resources are in short supply and fiber line losses are high.